Improvement in heating-stoves



PATENT ()FFICE.

- MARK A. oUsnIne, or AURORA, nunmors.

IMPROVEMENT IN HEATlNG-STOVES.

Specification forming part of Letters Patent No. 122,160, dated December26, 1871.

rora, in the county of Kane and State of Illinois, have invented a newand useful Improvement in Heating-Stoves; and I do declare that thefollowing is a true and accurate description thereof, reference beinghad to the accompanying drawing and to the letters of reference markedthereon and being a part of this specification, in which-- Figure 1 is asectional front view of a heatingstove made with my improvements. Fig. 2is a vertical central section of such a stove taken from front to rear;and Fig. 3 is a horizontal section of the same on line y y.

Like letters indicate like parts in each figure.

To enable those skilled in the art to make and use my invention I willproceed to describe the same with particularity, making use in so doingof the aforesaid drawing.

In the drawing, A represents the grate or fireplace, the exit from whichis by way of the throat or passage a. The hollow diaphragm B, standingat an incline across thisthroat, causesthe escaping products to bedeflected over the burning coal;

also more effectively radiating the heat to the front of the grate; and,by reason of numerous holes I) in its outer edge, causing a supply ofwarm air admitted through the pipes G to mingle with the passing gasesto produce a more perfect combustion. D is a radiating-chamber whichsurrounds the grate upon the top and three sides.

The products of combustion passing the throat a find their way directlyinto this chamber. E is a pendent vertical pipe or flue open at thebottom, and opening also into the small chamber I, which communicatesdirectly with the exitflue G. H is a damper contained within the chamberF, and so hinged as to cover the mouth of the pipe E when lying in ahorizontal position;

but when raised to a vertical position disclosing said pipe and closingan aperture, J, in the chamber F communicating from the radiatingchamber. When a direct draught is desired to fan the fire in kindling orfor other reason, the aperture J is opened and, by the same movement,the pipe E is closed. The draft is now directly from the throat athrough the aperture J and chamber F, to the exitfiue. On the otherhand, if the heat is desired the aperture J is closed and, by the samemovement, pipe E opened. The current is now reverted, the hot air, byreason of its rising tendency, fills the entire radiating-chamber, and,after parting with its heat, is impelled by gravity to the bottom of thepipe E, and is finally forced out through the same into the chamber Fand out The damper H is mounted upon a shaft, h, which passes out to aposition convenient of access outside of the stove. K is a dust-damperor door leading from the back part of the ash-pit into the bottom of theradiatingchamber, and should be opened when cleaning the fire, when thedraught will carry the dust and ashes into the chamber and up the flue,and thus prevent them from getting into the apartment.

The radiating-chamber and its attachments may be built into the breastof a chimney behind the grate and surrounded by a chamber havingair-inlets at the bottom and exits at the top, through which latter theair heated in its pas sage through said surrounding air-chamber-isdischarged into the apartment.

What I claim as my invention, secure by Letters Patent, is-

The combination and arrangement of the radiating-chamber D, the pipe E,chamber F, and

and desire to damper H, substantially as specified and shown.

MARK A. CUSHING.

